MR One Direction Backstop Cam Clutch-TIANNIU

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MR One Direction Backstop Cam Clutch

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MR One Direction Backstop Cam Clutch

The MR Series One Direction Backstop Cam Clutch is specifically designed for reliable anti-reversion protection in inclined conveyors and heavy machinery.

These units provide instant, zero-backlash engagement, securing loads immediately and preventing dangerous rollback incidents, even under extreme load conditions. The durable cam and race design ensures exceptional service life and consistent performance across a wide operating temperature range. Choose the MR Backstop Cam Clutch for superior operational safety and maintenance-free functionality.

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MR One Direction Backstop Cam Clutch

The MR Series One Direction Backstop Cam Clutch is specifically designed for reliable anti-reversion protection in inclined conveyors and heavy machinery.

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Product Detail

Lift-off (Outer race rotation type)

MR Series One Direction Backstop Cam Clutch is structuredso that the cam rotates together withthe outer race when the outer raceoverruns. As shown in the figure, thespring force (Fs) works to make thecam come in contact with the innerand outer races with fixed pressure.Conversely, the eccentric force (Fc),which works on the cam whenoverrunning, applies a moment in thedirection where the cam does notcontact the inner and outer races.Accordingly, when the overrunningspeed is increased, the eccentricforce (Fc) increases and themovement is augmented over themovement caused by the springforce. Next, the cam lifts off from theinner race and loses contact with it.This phenomenon is called “lift-off.”In this state, there is no friction on thecam and it continues overrunning aslong as the bearing lasts.

One Direction Backstop Cam Clutch parameter:

Model	Torque Capacity(N·m)	Max.Overrunning(r/min)		BoreSize		A	B(h7)	C	D	E	F	S	H-M No.of TappedHoles ×Size×Pitch	Lubrication FillerPlug Size×Pitch	Oil (mℓ)	Weight(kg)



		InnerRace	OuterRace	Dia.(H7)	Keyway
		InnerRace	OuterRace	Dia.(H7)	Keyway
MR 750	9500	525	2600	85	24x6	153	200	150	175	75	110	25	8xM14xP2.0	M8xP1.25	400	37
MR 800	17600	475	2100	110	28x7	158	250	155	220	77.5	140	25	8xM16xP2.0	M8xP1.25	500	46.5
MR 900	24500	400	1850	135	35x9	165	300	160	265	80	170	32	10xM16xP2.0	M8xP1.25	620	70.5
MR 1000	33800	325	1600	160	38x10	188	370	180	325	90	200	32	12xM16xP2.0	M8xP1.25	850	108.5

Mounting example:

Installation and Usage

1. MR Series One Direction Backstop Cam Clutch is usedfor outer race overrun in highspeedapplications.

2. For attaching a pulley, a gear, ora sprocket to the clutch, insertthe clutch into the hub of thesaid device, and screw the bolts(high tension) into the tappedholes on the clutch. Thetolerance of the bore hub shouldbe H6 or H7 of ISO R773.

3. When mounting the clutch on ashaft, apply pressure to theclutch inner race, but never to

the outer race.

4. Allow for a clearance betweenthe top of the clutch keyway andthe top of the key forpressureventilation. A pressure ventilationhole is provided on the keywayof the clutch inner race.

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